The Lemon Operating System

The Kernel of CharlotteOS

An x86 monolithic kernel and operating system written in modern C++. Comes with in-house graphical applications and command line utilities, plus ports of existing software. And yes, it runs DOOM!

Pragmatic microkernel-based OS with fully asynchronous I/O

🥑 A modern delightful operating system

An educational 32-bit linux-like Operating System, with public bachelor- and master-level course slides.

32-bit operating system written from scratch, with alternative user interface, designed for older computers with intention to provide system that will make them usable again